Date: Wed, 19 Mar 2003 14:31:58 -0500 (EST) From: Andrew Gallatin <gallatin@cs.duke.edu> To: David Schultz <das@FreeBSD.ORG> Cc: alpha@FreeBSD.ORG Subject: Re: making -mieee the default Message-ID: <15992.50606.275974.241571@grasshopper.cs.duke.edu> In-Reply-To: <20030319191937.GA1678@HAL9000.homeunix.com> References: <20030319191937.GA1678@HAL9000.homeunix.com>
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David Schultz writes:
> As discussed in the thread "HEADS UP: Don't upgrade your Alphas!",
> I would like to make the -mieee option to gcc the default, since
> lots of floating point stuff breaks without it. Alpha hardware
> doesn't support IEEE FP, so there is a performance penalty
> associated with this; when a floating point value x *might* be
> NaN, the compiler inserts explicit logic to generate a trap only
> if appropriate. (It seems to use cmpt??/su most of the time). I
> just wanted to check if there were any objections before moving
> forward.
>
Please go for it.
On an unrelated note, can somebody reboot beast so that it stops
complaining multiple times/second:
beast kernel: devstat_end_transaction: HELP!! busy_count for da1 is <
0 (-1)!
Drew
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